Hi,

I'm trying to develop a proper label control which will include a 'for' attribute. I would like to build this with functionality like the 'controltovalidate' property of a validator. The idea is that in the property window, I will be able to select a control on the page to relate the label to.

I think I might need to do something like:
<editor(...........)> Property.........

I new to writing custom controls so any help is greatly appreciated.

Regards,
Andy

hi!

use this attributes:
[IDReferencePropertyAttribute(typeof( <specify type>  )),
 TypeConverter(typeof(ControlIDConverter))]

orzeh

Hi,

Thanks for the reply, however I am not sure exactly what you mean.
I am writing in vb so I have converted your code to what is shown below. However I am having trouble with the attribute 'IDReferencePropertyAttribute' and the type 'ControlIDConverter', VS is complaining that they are both undefined. I have searched the documentation and cannot find reference to them in any namespace. What Am I doing wrong?? 

<IDReferencePropertyAttribute(GetType(System.Web.UI.Control)), TypeConverter(GetType(ControlIDConverter))>

Thanks,

Andy

andyajp141 wrote:

Hi, However I am having trouble with the attribute 'IDReferencePropertyAttribute' and the type 'ControlIDConverter', VS is complaining that they are both undefined. I have searched the documentation and cannot find reference to them in any namespace. What Am I doing wrong??

hello,

they are defined in System.Web.UI namespace, but in framework 2.0.
sorry that I didn`t mention it :)

orzeh

I'm only using 1.1 on this project. Any ideas if this can be done with 1.1?

Thanks,
Andy

hi!

You can try what I`ve done :-)
Open MSIL Disassembler. load from %Windir%\Microsoft.NET\Framework\<version> dll that contains the validator control. (system.web.dll )
then find in namespace BaseValidator class (System.Web.UI.WebControls) . then expand it`s node and find ControlToValidate property (with red triangle). click it.
You`ll something like this:
  .custom instance void System.Web.UI.IDReferencePropertyAttribute::.ctor() = ( .... )
  .custom instance void System.Web.WebSysDescriptionAttribute::.ctor(string) = ( ...)

this is what we`re looking for.
I know its "hardcore" solution, but it solved my problems :)

orzeh

Hi,

I had tried using ildasm earlier to look at the basevalidator, however, I was not quite sure what to do with the information it contains. I am trying to play around with some of the objects named below but I'm still struggling.

.property instance string ControlToValidate()
{
  .custom instance void System.Web.WebSysDescriptionAttribute::.ctor(string) = ( ...... )                                   
  .custom instance void [System]System.ComponentModel.TypeConverterAttribute::.ctor(class [mscorlib]System.Type) = ( ...... )      
  .custom instance void System.Web.WebCategoryAttribute::.ctor(string) = ( ...........)          
  .custom instance void [System]System.ComponentModel.DefaultValueAttribute::.ctor(string) = ( .... )
  .set instance void System.Web.UI.WebControls.BaseValidator::set_ControlToValidate(string)
  .get instance string System.Web.UI.WebControls.BaseValidator::get_ControlToValidate()
} // end of property BaseValidator::ControlToValidate

Thanks for all the help so far,
Andy

Hi,

I've just tried examining the BaseValidator using a tool called reflector. It gives the following information for the controltovalidate property:

[WebSysDescription("BaseValidator_ControlToValidate"), TypeConverter(typeof(ValidatedControlConverter)), WebCategory("Behavior"), DefaultValue("")]

However when I try to use WebSysDescription in my control VS complains that it is declared private so this may also be a nonstarter.

Any more ideas? Am I going to wrong way about this?

Andy